Andrew, you need to look at the spec of the receiver to see what is the max overshoot it can tolearate AND for how long it can tolerate it. If you have a very excessive overshoot, such as the one you mention in your email, you may forward bias clamping diodes on the receiver. Thanks, Dagmara On 1/12/06, Andrew Seddon <andrew.seddon@xxxxxxxxxxxx> wrote: > > Hello, > > > I was wondering if anybody had an idea of what is a typically acceptable > bad > but workable overshoot/undershoot on a 3.3V system? For example I see some > memory IC's can take transients upto 5.5v where as the datasheet max is > say > +0.3. Obviously this figure is based on DC. > > I presume the major effect's of over/under shoot are to reduce working > life > of the IC and make the circuit potentially fail at temperature extremes? > > So when you guys analyse overshoot/undershoot how do you decide if it's > acceptable? > > Kind regards, > > Andrew > > ------------------------------------------------------------------ > To unsubscribe from si-list: > si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field > > or to administer your membership from a web page, go to: > //www.freelists.org/webpage/si-list > > For help: > si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > > List FAQ wiki page is located at: > http://si-list.org/wiki/wiki.pl?Si-List_FAQ > > List technical documents are available at: > http://www.si-list.org > > List archives are viewable at: > //www.freelists.org/archives/si-list > or at our remote archives: > http://groups.yahoo.com/group/si-list/messages > Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > > > ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu